DP83848C-POE-EK National Semiconductor, DP83848C-POE-EK Datasheet - Page 76

• Manufacturer Part Number: DP83848C-POE-EK
• Description: BOARD EVALUATION DP83848C
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of DP83848C-POE-EK

• Main Purpose: Special Purpose DC/DC, Power Over Ethernet
• Outputs And Type: 1, Isolated
• Power - Output: 24W
• Voltage - Output: 3.3V
• Current - Output: 7.3A
• Voltage - Input: 39 ~ 57V
• Regulator Topology: Flyback
• Frequency - Switching: 250kHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM5072
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

www.national.com
8.2.21 10BASE-T Normal Link Pulse Timing
Note: These specifications represent transmit timings.
8.2.22 Auto-Negotiation Fast Link Pulse (FLP) Timing
Note: These specifications represent transmit timings.
T2.21.1
T2.21.2
T2.22.1
T2.22.2
T2.22.3
T2.22.4
T2.22.5
Parameter
Parameter
Normal Link Pulse(s)
Fast Link Pulse(s)
Pulse Width
Pulse Period
Clock, Data Pulse Width
Clock Pulse to Clock Pulse
Period
Clock Pulse to Data Pulse
Period
Burst Width
FLP Burst to FLP Burst Period
Description
Description
T2.22.1
clock
pulse
T2.21.1
T2.22.3
T2.22.4
FLP Burst
Data = 1
T2.22.2
data
pulse
T2.21.2
T2.22.5
76
Notes
Notes
clock
pulse
T2.22.1
FLP Burst
Min
Min
Typ
Typ
100
100
125
16
62
16
2
Max
Max
Units
Units
ms
ms
ms
ns
ns
s
s